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Harness Key West

product on market Liquid ARN Arms Race Nutrition Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 57% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · methodology

L-Citrulline and Beta-Alanine have strong evidence for improving endurance and muscle performance. Caffeine and Alpha-GPC are moderately supported for enhancing focus and alertness, while elevATP is included for cellular energy support. These ingredients are generally recognized as safe at standard dosages.

AI-generated summary based on research evidence. Not medical advice.

Label

Product Label

Label for Harness Key West
Open Full PDF View on NIH DSLD →
Details

Label Data

12 FL OZ
Serving Size
1
Servings
Other Combinations
Product Type
57%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

5000 mg
Market median: 2000.0mg (275 products)
3200 mg
Market median: 1500.0mg (104 products) 21 studies (A:0, B:2)
Within RDA (0.5× RDA) 38 studies (A:1, B:7)
Market median: 180.0mg (239 products) 49 studies (A:1, B:19)
elevATP
150 mg
Market median: 180.0mg (239 products) 49 studies (A:1, B:19)
Market median: 0.15mg (41 products)

Other Ingredients

Water, Filtered Citric Acid Malic Acid Natural & Artificial Flavors Sucralose Sodium Hexametaphosphate Acesulfame Potassium Potassium Sorbate Sodium Benzoate Calcium Disodium EDTA
Claims

Label Claims — Verification

Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Directions: As a dietary supplement, take one (1) serving (12 fl oz.) 15-30 min prior to your workout. Do not exceed one (1) serving within a 24 hour period.

Warnings & Precautions

Do not exceed one (1) serving within a 24 hour period.

Warning: Keep out of reach of children. Do not use this product if you are under the age of 18.

Do not take if you have a preexisting medical condition or are taking any medications. Do not use if you are pregnant or nursing.

As with any dietary supplement, consult a healthcare professional before using this product. Immediately discontinue use and consult a healthcare professional if you experience any adverse reactions. Do not purchase if outer seal is broken or damaged.

Warning: This product may expose you to chemicals including lead known to the state of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65warnings.ca.gov

Formulation Notes

Key West Naturally & artificially flavored Peach Cranberry Orange

Manufactured in a U.S. cGMP Facility.

Pre-workout

elevATP Strength. Power. Performance.

Additional Information

Old school dedication Modern science Greetings from Key West Florida

Metadata

Product Details

UPC / SKU8 50051 03164 1
DSLD Entry Date2025-06-25
Product TypeOther Combinations
FormLiquid
BrandARN Arms Race Nutrition
DSLD ID328365
Data Updated2026-04-11
Research

Research Evidence

12
Research Sources
45
Avg Quality
6
Rct
5
Clinical Trial
1
Meta Analysis
C Effect of food sources of nitrate, polyphenols, L-arginine and L-citrulline on endurance exercise performance: a systematic review and meta-analysis of randomised controlled trials
Meta Analysis Journal of the International Society of Sports Nutrition 2021 PubMed DOI
C Effects of L-Citrulline Supplementation on Endothelial Function and Blood Pressure in Hypertensive Postmenopausal Women.
Rct Nutrients PubMed DOI
C Effects of Acute Citrulline Malate Supplementation on CrossFit® Exercise Performance: A Randomized, Double-Blind, Placebo-Controlled, Cross-Over Study.
Rct Nutrients PubMed DOI
C Impact of L-Citrulline Supplementation and HIIT on Lipid Profile, Arterial Stiffness, and Fat Mass in Obese Adolescents with Metabolic-Dysfunction-Associated Fatty Liver Disease: A Randomized Clinical Trial.
Rct Nutrients PubMed DOI
C Effect of L-Citrulline Supplementation on NAFLD in Adolescents With Obesity
Clinical Trial ClinicalTrials.gov 2021
C Effects of L-Citrulline or Citrulline-malate on Neuromuscular Performance in Resistance-trained Adults
Clinical Trial ClinicalTrials.gov 2022
C Acute effects of Nitrosigine® and citrulline malate on vasodilation in young adults.
Rct Journal of the International Society of Sports Nutrition PubMed DOI
C Effects of Combined Versus Single Supplementation of Creatine, Beta-Alanine, and L-Citrulline During Short Sprint Interval Training on Basketball Players' Performance: A Double-Blind Randomized Placebo-Controlled Trial.
Rct International journal of sports physiology and performance PubMed DOI
C Acute effects of combined supplementation of L-arginine and citrulline malate on aerobic, anaerobic, and CrossFit exercise performance.
Rct Scientific reports PubMed DOI
C L-Citrulline in Peripheral Artery Disease
Clinical Trial ClinicalTrials.gov 2016
View all evidence for Citrulline →
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.